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Date:      Fri, 24 Apr 2009 08:10:24 +0200
From:      Alexander Leidinger <Alexander@Leidinger.net>
To:        "M. Warner Losh" <imp@BSDIMP.COM>
Cc:        stas@freebsd.org, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org
Subject:   Re: svn commit: r191369 - in head/sys: arm/conf dev/iicbus
Message-ID:  <20090424081024.111742c8wxixpji8@webmail.leidinger.net>
In-Reply-To: <20090423.084920.-365726763.imp@bsdimp.com>
References:  <20090422231511.ca92fb9f.stas@FreeBSD.org> <20090422.133147.-1890035357.imp@bsdimp.com> <20090423091120.18706t1ks38zgfgo@webmail.leidinger.net> <20090423.084920.-365726763.imp@bsdimp.com>

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Quoting "M. Warner Losh" <imp@BSDIMP.COM> (from Thu, 23 Apr 2009 =20
08:49:20 -0600 (MDT)):

> In message: <20090423091120.18706t1ks38zgfgo@webmail.leidinger.net>
>             Alexander Leidinger <Alexander@leidinger.net> writes:
> : Quoting "M. Warner Losh" <imp@bsdimp.com> (from Wed, 22 Apr 2009
> : 13:31:47 -0600 (MDT)):
> :
> : > In message: <20090422231511.ca92fb9f.stas@FreeBSD.org>
> : >             Stanislav Sedov <stas@FreeBSD.org> writes:
> : > : On Wed, 22 Apr 2009 09:05:46 +0200
> : > : Alexander Leidinger <Alexander@Leidinger.net> mentioned:
> : > :
> : > : > Quoting "M. Warner Losh" <imp@bsdimp.com> (from Wed, 22 Apr 2009
> : > : > 00:26:43 -0600 (MDT)):
> : > : >
> : > : > > In message: <200904212248.n3LMmCbu027432@svn.freebsd.org>
> : > : > >             Stanislav Sedov <stas@FreeBSD.org> writes:
> : > : > > : Author: stas
> : > : > > : Date: Tue Apr 21 22:48:12 2009
> : > : > > : New Revision: 191369
> : > : > > : URL: http://svn.freebsd.org/changeset/base/191369
> : > : > > :
> : > : > > : Log:
> : > : > > :   - Rename ds1672 and ds133x devices to "ds1672_rtc" and =20
> "ds133x_rtc"
> : > : > > :     respectivly. This will allow one to have a kernel with
> : > both devices
> : > : > > :     present and use it for multiple boards with different
> : > types of RTC
> : > : > > :     sitting on a bus.
> : > : > > :
> : > : > > :   Discussed with:=09imp
> : > : > >
> : > : > > Hey thanks Stas!  Now things are better than before both =20
> functionally
> : > : > > and cosmetically!  Good idea on the names...
> : > : >
> : > : > <devils_advocate>
> : > : > Are those the first devices with an underscore in the name now? If
> : > : > yes, do we want this?
> : > : > </devils_advocate>
> : > : >
> : > :
> : > : I had the same concerns too, but was not able to come up with anythi=
ng
> : > : better. BTW, I think those devices were the first that ended with a
> : > : digit.
> :
> : ds1672rtc?   Just if it pleases you or we do not want underscores in
> : device names which are visible to the outside.
>
> There's no rule against understores right now.

Doesn't matter. Are there some automated things out there which depend =20
upon the fact that there are no underscores? Are device names used =20
somewhere in variable names with underscores which are used as =20
seperators? Personally I don't know. Do we care about this? I don't, I =20
have no such device, but maybe someone of you cares about this.

> : > No.  They weren't.  There are sound devices that end in digits:
> : >
> : > # snd_ad1816:=09=09Analog Devices AD1816 ISA PnP/non-PnP.
> : > # snd_als4000:=09=09Avance Logic ALS4000 PCI.
> : > # snd_cs4281:=09=09Crystal Semiconductor CS4281 PCI.
> : > # snd_ds1:=09=09Yamaha DS-1 PCI.
> : > # snd_emu10k1:=09=09Creative EMU10K1 PCI and EMU10K2 (Audigy) PCI.
> : > # snd_envy24:=09=09VIA Envy24 and compatible, needs snd_spicds.
> : > # snd_fm801:=09=09Forte Media FM801 PCI.
> : > # snd_maestro3:=09=09ESS Technology Maestro-3/Allegro PCI.
> : > # snd_sb16:=09=09Creative SoundBlaster16, to be used in
> : > # snd_sb8:=09=09Creative SoundBlaster (pre-16), to be used in
> : > # snd_via8233:=09=09VIA VT8233x PCI.
> : > # snd_via82c686:=09VIA VT82C686A PCI.
> : >
> : > but since they all live on an enumerated bus, they all share the name
> : > "pcm".
> :
> : And because of this they don't count as being with underscores...
>
> Why not?

Short: POLA + history

Long:
The official name is pcm everywhere where it is displayed. Just =20
"recently" (in the last years) the underscored names appeared =20
officially (besides the file names for the modules) when the kld for =20
the pcm device started to appear in /dev/sndstat, but even there the =20
device is pcm and the underscored name is some additional info only =20
available when loaded as a module. Any use of this is completely =20
specific to /dev/sndstat parsing and in this part of sndstat there =20
where underscores since the beginning.

Bye,
Alexander.

--=20
Adult, n.:
=09One old enough to know better.

http://www.Leidinger.net    Alexander @ Leidinger.net: PGP ID =3D B0063FE7
http://www.FreeBSD.org       netchild @ FreeBSD.org  : PGP ID =3D 72077137



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